23315115 has 32 divisors (see below), whose sum is σ = 38497536. Its totient is φ = 12044160.

The previous prime is 23315107. The next prime is 23315119. The reversal of 23315115 is 51151332.

It is not a de Polignac number, because 23315115 - 2³ = 23315107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23315091 and 23315100.

It is not an unprimeable number, because it can be changed into a prime (23315119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75792 + ... + 76098.

It is an arithmetic number, because the mean of its divisors is an integer number (1203048).

Almost surely, 2^23315115 is an apocalyptic number.

23315115 is a deficient number, since it is larger than the sum of its proper divisors (15182421).

23315115 is a wasteful number, since it uses less digits than its factorization.

23315115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459.

The product of its digits is 450, while the sum is 21.

The square root of 23315115 is about 4828.5727704985. The cubic root of 23315115 is about 285.6795725088.

Adding to 23315115 its reverse (51151332), we get a palindrome (74466447).

The spelling of 23315115 in words is "twenty-three million, three hundred fifteen thousand, one hundred fifteen".